?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Richa%2C+.&rft.aulast=Richa&rft.aufirst=.&rft.volume=156&rft.date=11+April+2020&rft.issn=1879-0003&rft.atitle=pH+mediated+rheological+modulation+of+chitosan+hydrogels.&rft.title=International+journal+of+biological+macromolecules&rft.pages=591-597&rft.genre=article